BART services to the East Bay were restored around 11 a.m. after a cracked rail north of Lake Merritt Station caused a two-hour disruption earlier this morning.
The incident began about 9:15 a.m. and special shuttle trains were brought in to help passengers around the affected area while crews worked at the scene.
Delays of up to 30 minutes were experienced on the Fremont, Dublin Pleasanton, Richmond and Pittsburg Bay Point lines.
Passengers were directed to transfer at the West Oakland, Bayfair and Oakland City Center/12th Street stations to trains waiting on the opposite platforms.
BART operators kept passengers updated about the situation with periodic updates but service was slow at some stations even after 11 a.m.
The cause of the cracked rail is not yet known.